446666664 has 32 divisors (see below), whose sum is σ = 1146849120. Its totient is φ = 144864576.

The previous prime is 446666659. The next prime is 446666713. The reversal of 446666664 is 466666644.

It is a super-2 number, since 2×446666664² = 399022217457777792, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250614 + ... + 252389.

It is an arithmetic number, because the mean of its divisors is an integer number (35839035).

Almost surely, 2^446666664 is an apocalyptic number.

It is an amenable number.

446666664 is an abundant number, since it is smaller than the sum of its proper divisors (700182456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

446666664 is a wasteful number, since it uses less digits than its factorization.

446666664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503049 (or 503045 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 48.

The square root of 446666664 is about 21134.4899157751. The cubic root of 446666664 is about 764.4126175893.

The spelling of 446666664 in words is "four hundred forty-six million, six hundred sixty-six thousand, six hundred sixty-four".